These gift sets have everything you need to start bottle feeding!The Joovy Boob Baby Bottle is the most innovative baby bottle on the market today. Ergonomic and beautiful, the Boob is made with high-quality materials and offers the very best functionality.The PP Boob Baby Bottle has the same advanced system as our PPSU bottle but is made from PP or polypropylene, a very durable plastic that is cost effective. It is available in clear, blue, and purple and is BPS, BPA, phthalate, and lead-free. Each bottle is individually shrink-wrapped to ensure the highest level of cleanliness.We've developed the most advanced bottle venting technology, our CleanFlow Vent, to prevent nipple collapse, negative pressure, and colic symptoms. This one-piece ring vent is the only internal quad-vent in the baby bottle market. It provides consistent venting regardless of how the bottle is held and fits perfectly into the bottle's neck to eliminate any misfitting that can cause leakage or inconsistent liquid flow. In addition to being the most efficient vent system, it is the easiest to clean and reassemble.Our nipples have been designed to make transitioning from breastfeeding to bottle-feeding and bottle-feeding to breastfeeding an easy and natural process. The large diameter base and nipple length assist your baby in properly “latching" onto the nipple. Our nipples are molded, not cut, with the appropriate size hole and tested for consistency throughout production. We also take the extra step of baking our nipples, which strengthens the silicone to help prevent nipple collapse while providing constant softness. Our 5oz, 9oz, and 11oz bottles come with our Stage 1, Stage 2, and Stage X nipples. We have other nipples with different flow rates available for purchase separately, from Stage 0 to X. Our Naturally Nood Nipples (sold separately) have added texture for babies who don't want to take a bottle and are available in 5 flows.We are so sure you'll love the Boob Baby Bottle, we offer a 100% satisfaction guarantee. Three 9 oz. high-quality PP (polypropylene) bottles with stage 2 (3+ months) nipples One 9 oz. insulator Three 5 oz. High Quality PP bottles with stage 1 (0+ months) nipples One 5 oz. insulator 2 breast pump adapters 3 sealing caps 1 stage 1 nipple 1 stage 2 nipple 2 stage 3 (6+ months) nipples 2 stage X (extra-fast flow for thicker fluids, 6+ months) nipples 2 stage 0 (preemie/0+ months) nipples 1 nipple brush 1 bottle brush Bottle made from durable BPA-free plastic Manufacturer's warranty ImportedFeatures: Bpa Free, Pvc FreeBase Material: 100% PolypropyleneCountry of Origin: Imported